EP 0185671 B1 19911218 - TOUCH OPERATED KEYBOARD
Title (en)
TOUCH OPERATED KEYBOARD
Publication
Application
Priority
GB 8409877 A 19840417
Abstract (en)
[origin: WO8504994A1] The keyboard is designed for attachment to one side of a sheet of glass for operation by touching the other side of the sheet of glass. The keyboard and associated circuitry include means for compensating for various thicknesses of glass and for changes in environmental conditions, thereby enabling the keyboard to be reliably operable through varying thicknesses of glass.
IPC 1-7
IPC 8 full level
G06F 3/044 (2006.01); H03K 17/96 (2006.01)
CPC (source: EP US)
H03K 17/9622 (2013.01 - EP US)
Citation (examination)
Patent Abstracts of Japan, vol. 7, nr. 182, 11.8.83, P E-192-1327 & JP, A, 5885636 (CASIO KEISANKI K.K.) 23 May 1983
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8504994 A1 19851107; AT E70675 T1 19920115; AU 4213485 A 19851115; DE 3584956 D1 19920130; EP 0185671 A1 19860702; EP 0185671 B1 19911218; GB 2161935 A 19860122; GB 2161935 B 19880309; GB 8409877 D0 19840531; GB 8509693 D0 19850522; JP 2559695 B2 19961204; JP S61501953 A 19860904; US 4954823 A 19900904
DOCDB simple family (application)
GB 8500168 W 19850416; AT 85901534 T 19850416; AU 4213485 A 19850416; DE 3584956 T 19850416; EP 85901534 A 19850416; GB 8409877 A 19840417; GB 8509693 A 19850416; JP 50169585 A 19850416; US 32325189 A 19890309